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Hill's Science Diet Science Diet
Hill's Ideal Balance Ideal Balance
Hill's Prescription Diet Prescription Diet
Hill's Healthy Advantage

Kitten Kitten
Adult 1+ Adult 1+
Mature <br/>Adult 7+
Adult 7+
Senior 11+ Senior 11+

Puppy Puppy
Adult 1+ Adult 1+
Mature <br/>Adult 7+
Adult 7+
Senior 11+
Senior 11+

Grain Free


By Health Conditon

Adult Optimal Care® Original - Dry

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Hill's® Science Diet®
Adult Optimal Care® Original

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Hill's® Science Diet® Adult
Optimal Care® Original cat food provides Precisely balanced, easy-to-digest nutrition for a visible difference guaranteed or your money back.

  • Taurine and controlled levels of phosphorus promote healthy vital organs
  • High quality lean protein helps promote a healthy weight
  • Omega-6 fatty acids and vitamin E to improve skin & coat in 30 days*
  • Real chicken #1 with natural ingredients and no chicken by-product meal

*Vs. previously fed grocery foods

Where To Buy

Key Benefits

Recommended For:

Adult cats 1 -- 6 years of age.

Not Recommended For:

Kittens, pregnant or nursing cats.
During pregnancy or nursing, cats should be switched to: Science Diet® Kitten Healthy Development Original.

BenefitsNutrientHow It Works
Healthy vital organsTaurineTaurine, essential amino acids and multivitamins promote healthy growth of vital organs including the heart and kidneys.
Healthy body weightHigh quality proteinHigh quality lean protein helps promote a healthy weight.
Healthy skin & shiny coatOmega-6 fatty acidsExclusive blend of omega-6 fatty acids, vitamin E and other nutrients nourishes the skin and promotes a noticeably shiny coat in 30 days guaranteed.*

Additional Info

Healthy choices matter, for both you and your pet. For more than 70 years, Hill's has been advancing knowledge of how to keep pets their healthiest. That means great-tasting, nutritious food with natural ingredients that helps your cat live a long, happy life.

We make every bag of our dry cat food in our own US facilities with highest quality natural ingredients from North America and Europe. These ingredients must meet our strict requirements for purity and nutrient content, which exceed industry standards.

By choosing Science Diet, you help us provide food to shelter pets 365 days a year.
Learn more at

Other Products to Consider

Science Diet is available in a wide variety of foods for your cat's unique needs. Canned cat food is available from Science Diet in several flavors such as delicious Adult Savory Chicken Entrée that your cat will love. Also try Science Diet treats that are sure to please!

Feeding Guide

Daily Feeding Guide:


  • Adjust feeding amounts as necessary to maintain optimal weight. If you are unsure, ask your veterinarian.
  • New to this food? Mix increasing amounts of your pet's new food with decreasing amounts of the old food over a 7-day period.
  • Keep fresh water available at all times!
  • Your pet's nutritional needs may change as they age. Ask your vet at every checkup.
  • Science Diet is available in a wide variety of dry foods, wet foods and treats for your pet's unique needs.
  • To prevent suffocation, keep this bag out of the reach of pets and children.

Adult maintenance

Weight of CatAmount per Day
5 lb (2,3 kg) 1/4 cup (30 g) - 3/8 cup (45 g)
10 lb (4,5 kg) 3/8 cup (45 g) - 5/8 cup (80 g)
15 lb (6,8 kg) 5/8 cup (80 g) - 3/4 cup (95 g)
Science Diet® Adult Optimal Care® Original Cat Food is formulated to meet the nutritional levels established by the AAFCO Cat Food Nutrient Profiles for maintenance of adult cats.

Average Nutrient and Caloric Contents

Dry 4011 kcal/kg (500 kcal/cup)

Dry Matter1
Carbohydrate (NFE)35.4
Crude Fiber1.5
Vitamin C127 mg/kg
Vitamin E676 IU/kg


1The nutrient in the product after moisture is removed. It is used to make direct comparisons of nutrient profiles of products with differing moisture contents.
†An eight fluid oz. measuring cup of Adult Optimal Care® Original contains 4.4 oz. by weight.


Chicken, Whole Grain Wheat, Corn Gluten Meal, Pork Fat, Brewers Rice , Wheat Gluten, Chicken Liver Flavor, Dried Beet Pulp, Dried Egg Product, Calcium Sulfate, Lactic Acid, Potassium Chloride, DL-Methionine, Choline Chloride, Fish Oil, Soybean Oil, Calcium Carbonate, Iodized Salt, Taurine, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Riboflavin Supplement, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Folic Acid, Vitamin D3 Supplement), L-Lysine, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Oat Fiber, Mixed Tocopherols for freshness, Phosphoric Acid, Beta-Carotene, Natural Flavors, Dried Apples, Dried Broccoli, Dried Carrots, Dried Cranberries, Dried Peas.

Adult Optimal Care® Original - Dry sd feline adult 052742006437,052742204512,052742204505,052742679716,052742679709,052742851907

Rated 5 out of 5 by from This product has been a life saver for my finicky cats! I have three cats who will turn 2 in August. They love Science Diet Adult cat food. The one time I purchased a different brand, they refused to eat. I looked at the ingredients and found that the other brand had ingredients with long names that were unfamiliar to me and I have never bought anything but Science Diet since for my precious cats. I give them Science Diet canned food for breakfast only, the rest of the day they eat their Science Diet dry cat food and love it. They stay inside at all times and have maintained a healthy weight. Thank you Science Diet for giving my cats the opportunity to have a healthy meal that they enjoy eating!
Date published: 2012-05-18
Rated 5 out of 5 by from Glossy coats abound w/ this product When I first adopted my current two cats in March 3 years ago, they were half sisters who were 8 weeks and 8 months old. The 8 month old had a dull black coat because she had lived outside thru most of the winter. Because I had a 17-yr-old cat, I mixed her senior cat food w/ this food and w/ a little of the kitten version and fed it to all three cats. Within six months, I noticed that the 8 month old (then slightly over a year old) had this beautiful glossy black coat, and she and her sister continue to have to this day. In addition, because the food is highly digestible, it is a snap to clean the kitty litter for three cats each day.
Date published: 2013-08-02
Rated 5 out of 5 by from In my eyes there is nothing better. What can I say Jazzman is my life. She showed up here two summers ago not in the best of shape. I immediately took her to the vet only to find out she had feline leukemia. I vowed to her daily that I would do all that I could to take care of her. She went into treatment right away for the leukemia shots and more to maintain her health. Next step was I wanted the best for her to eat. My vet sold the Science Diet foods and I have heard of that brand before. I bought some and I can not keep Jazzman's bowl full enough. She truly loves her food and that means alot to me with her condition. So thank you for your help in helping my Jazzman.
Date published: 2012-05-16
Rated 5 out of 5 by from This product is the best! I have three cats and was constantly cleaning up messes from my cats after they would eat the normal grocery store food. Their stomach's did not like something...My vet encouraged me to switch to a higher protein higher quality food. We discussed options and concluded on trying the Science Diet products. I have tried a couple different types and have landed on the Optimal Care original. The cats love the taste and I love that I have no more mess! I have had several compliments on the way that the cats even look - their hair is shiny and healthly looking. They have more energy and are much happier. Thank you Science Diet!!
Date published: 2012-05-19
Rated 5 out of 5 by from Optimum health w/ Optimal Care food! My cat officially turns 7 next week and has eaten Science Diet since day 1! It has always kept her coat beautiful, her size perfect, her attitude playful and active! She's never had 1 hairball, stomach or weight issue and I contribute that to the good quality of the Science Diet! I give her a few pieces of the oral care (she thinks they're treats) every other day to help keep her mouth healthy, and have started mixing in the new Ideal Balance with her regular food. She's loving it! Almost too active for me-I was expecting her to be a little lazier at 7! MissyCat and I are very thankful we found this brand so early on!
Date published: 2012-05-17
Rated 5 out of 5 by from this product is consumed eagerly by my 3 cats My main positivity about this food is that the ash /mag percentage is lower than in any of your other dry food products. Because I have three males that could be prone to UTI `s or blockage, I prefer to use this brand. Luckily they love it...although I have heard that the high carb percentage in all dry food could expose a mature cat to diabetes especially if its overweight. One of my cats is overweight, and does not like your `light` or weight controlled dry food. Therefore I am trying to get them to eat more chicken/beef based HSD wet food as well as the Optimal. Please do not discontinue!!
Date published: 2012-05-16
Rated 5 out of 5 by from Kali Love this food - The Proof is in the kittie! =^..^= My adopted kittie - whom just turned one on the 13th, loves this dry food! When I first got him at 3 months, his coat which seemed dull & dry to me, now after feeding him Hills Science diet for 9 months not only has his coat become very soft, glossy & shiny ( he is a beautiful black, with what seems to be highlights), he is a healthy, happy & playful teenager, and everyone has noticed the difference, when he sees me come in the house with the bag - he seems to know right away it is for him. Amazing results, will continue him with Hill's & will adapt the formula as needed as he grows & gets older! Would recommend to everyone, well worth the price for Optimal health of your pet!
Date published: 2013-09-26
Rated 5 out of 5 by from All My cats Love It! I have 13 rescue cats and a few have Gastrointestinal issues and also Heart problems. I dont believe in feeding your pet low quality cat food if you want them healthy. I used to feed cheaper brands of dry cat food and even hough my cats liked it they were having hairball and gastric issues. I decided to switch to the Hills Science Optimal Care dry food and as soon as I got home and opened the bag ALL 13 of my kitties loved it. I have been feeding Hills since about 1 month ago and since then no hairball issues and minimal gastric issues. Although more expensive I truly believe Hills has made my cats healthier and event their coats look shinier and full. Thanks Hills Science Diet.
Date published: 2015-04-17
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